Hydrocarbon continuous liquid phase hydrogenation process method and device

Abstract

The invention discloses a hydrocarbon continuous liquid phase hydrogenation process method which includes a gas-liquid mixing step, to be more specific, a liquid phase material flow is fully mixed with hydrogen to obtain a dissolved-hydrogen-saturated liquid phase material flow by use of a gas-liquid mixer; and a hydrogenation reaction step, to be more specific, the dissolved-hydrogen-saturated liquid phase material flow flowing into a reactor flows in the direction of from the top of the reactor to the bottom of the reactor for liquid phase contact reaction with every stages of catalyst bed layers, and at the same time, new hydrogen is injected into the liquid phase material flow by a hydrogen distributor so as to realize the efficient hydrocarbon reaction of the liquid phase material flow. The present invention also discloses a hydrocarbon continuous liquid phase hydrogenation device which includes one gas-liquid mixer and one multiplestage reactor, the multiplestage reactor is connected with the gas-liquid mixer, each stage of the reactor comprises at least two stages of catalyst bed layers, and one hydrogen gas distributor is arranged between adjacent catalyst bed layers,.

Description

technical field [0001] The invention relates to a liquid-phase hydrogenation method, in particular to a continuous liquid-phase hydrogenation process and device for hydrocarbons (hydrocarbon oil or hydrocarbon compounds). Background technique [0002] In the prior art, in order to remove or partially remove impurities such as sulfur, nitrogen, oxygen, metals, and carbon residues in hydrocarbon raw materials, or for saturated or partially saturated aromatics, olefins, and dienes, or for the generation of hydrocarbon molecules Reactions such as isomerization, cyclization, aromatization, and cracking cracking usually use the hydrogenation reaction process. [0003] The Chinese patent invention with the publication number CN86108622 discloses a hydrofinishing process for the reformed oil, and the volume ratio of hydrogen to oil is 200:1-1000:1; the Chinese patent invention with the publication number CN93101935.4 discloses a A one-stage hydrocracking process for low-quality fee...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a continuous liquid phase hydrogenation process for hydrocarbons and its device to solve the existing problems in the prior art of circulating hydrogen and circulating product feed, reactor The problem of large volume and high energy consumption of equipment

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